Hi, we're here from Curiosity.com to help you get smarter in just a few minutes.

I'm Cody Gough.

And I'm Ashley Hamer.

Today you learn why you're more likely to order junk food after your friends do.

Why were the only human species,

and why people literally dance themselves to death

during the medieval dancing plague.

Let's satisfy some curiosity.

According to research,

you're more likely to order unhealthy food if your friend does first.

And the reason might surprise you.

It's not because you're gluttonous or lazy or even that you're looking for your friend's approval.

Instead, researchers found that empathy was the primary motivator.

And that's why today we're starting with a story on the term

they came up with for this.

Ultraistic indulgence.

Are you altruistically indulgent, Ashley?

Oh boy, I try not to be, but yeah, for sure.

For a study last year published at Seoul National University, researchers looked at patterns in

drink orders from a large coffee shop at a university in Korea. They did this by looking at

649 receipts and they found that when a customer ordered a high calorie item

their a companion followed suit a whopping 80% of the time.

...